Mamadou Diakhon is a forward born in Strasbourg, France, in 2005. He joined Reims' academy and made his professional debut for the club in Ligue 1 against Lyon in May 2023, then signed his first professional contract that summer. In August 2025 he moved to Club Brugge in Belgium. Diakhon represented France at under-18, under-19 and under-20 levels, but opted to play for Senegal in 2026 and debuted for the senior national team in a friendly win over The Gambia.